/***********************************************
* Fading Scroller- © Dynamic Drive DHTML code library (www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit Dynamic Drive at http://www.dynamicdrive.com/ for full source code
***********************************************/

var delay = 8000; //set delay between message change (in miliseconds)
var maxsteps=50; // number of steps to take to change from start color to endcolor
var stepdelay=40; // time in miliseconds of a single step
//**Note: maxsteps*stepdelay will be total time in miliseconds of fading effect
var startcolor= new Array(255,255,255); // start color (red, green, blue)
var endcolor=new Array(0,0,0); // end color (red, green, blue)

var fcontent=new Array();
begintag='<div style="font: normal 11px Tahoma; padding: 5px; border: 0px; text-align:left; padding-top:25px;" id="news">'; //set opening tag, such as font declarations

fcontent[0]="<div style=font-weight:bold; padding-bottom:15px;>Presidents Message - 2009</div><span style='line-height:15px; text-align:justify;'>Society was directly responsible for convincing the government to establish Yala National Park in 1935, amalgamation with Wilpattu West Sanctuary with Wilpattu National Park in 1973.....</span><br><a href='PresidentsMessage.php'>Read full message</a>";


<!--fcontent[1]="<div style=font-weight:bold; padding-bottom:15px;>WNPS Members Meeting December 2007</div><span style='line-height:15px; text-align:justify;'> Sri Lanka Endemic Species a Red Alert By Mr. Wimukthi Weeratunga </span><br><a href='news/monthlymeeting_Sep.php'>Read more...</a>";-->


/*fcontent[2]="<div style=font-weight:bold; padding-bottom:15px;>Why Birds?</div><span style='line-height:15px; text-align:justify;'>A lecture by Professor Sarath Kotagama with a discussion on the identification of birds using external characters.</span><br><a href='#'>Read more...</a>";

fcontent[3]="<div style=font-weight:bold; padding-bottom:15px;>Leopard was observed</div><span style='line-height:15px; text-align:justify;'>on Meda Para, around 4.30 pm. A young male Leopard (2-3 years) was observed by several visitors at Kotigala.</span><br><a href='#'>Read more...</a>";

fcontent[4]="<div style=font-weight:bold; padding-bottom:15px;>Environmental Impact Assessment Cell</div><span style='line-height:15px; text-align:justify;'>The Environmental Impact Assessment Cell established in 1993, have a fine record of assignments for growing industry and development infrastructure in ecologically sensitive areas.</span><br><a href='#'>Read more...</a>";*/

closetag='</div>';

var fwidth='195px'; //set scroller width
var fheight='150px'; //set scroller height

var fadelinks=0;  //should links inside scroller content also fade like text? 0 for no, 1 for yes.

///No need to edit below this line/////////////////


var ie4=document.all&&!document.getElementById;
var DOM2=document.getElementById;
var faderdelay=0;
var index=0;


/*Rafael Raposo edited function*/
//function to change content
function changecontent(){
  if (index>=fcontent.length)
    index=0
  if (DOM2){
    document.getElementById("fscroller").style.color="rgb("+startcolor[0]+", "+startcolor[1]+", "+startcolor[2]+")"
    document.getElementById("fscroller").innerHTML=begintag+fcontent[index]+closetag
    if (fadelinks)
      linkcolorchange(1);
    colorfade(1, 15);
  }
  else if (ie4)
    document.all.fscroller.innerHTML=begintag+fcontent[index]+closetag;
  index++
}

// colorfade() partially by Marcio Galli for Netscape Communications.  ////////////
// Modified by Dynamicdrive.com

function linkcolorchange(step){
  var obj=document.getElementById("fscroller").getElementsByTagName("A");
  if (obj.length>0){
    for (i=0;i<obj.length;i++)
      obj[i].style.color=getstepcolor(step);
  }
}

/*Rafael Raposo edited function*/
var fadecounter;
function colorfade(step) {
  if(step<=maxsteps) {	
    document.getElementById("fscroller").style.color=getstepcolor(step);
    if (fadelinks)
      linkcolorchange(step);
    step++;
    fadecounter=setTimeout("colorfade("+step+")",stepdelay);
  }else{
    clearTimeout(fadecounter);
    document.getElementById("fscroller").style.color="rgb("+endcolor[0]+", "+endcolor[1]+", "+endcolor[2]+")";
    setTimeout("changecontent()", delay);
	
  }   
}

/*Rafael Raposo's new function*/
function getstepcolor(step) {
  var diff
  var newcolor=new Array(3);
  for(var i=0;i<3;i++) {
    diff = (startcolor[i]-endcolor[i]);
    if(diff > 0) {
      newcolor[i] = startcolor[i]-(Math.round((diff/maxsteps))*step);
    } else {
      newcolor[i] = startcolor[i]+(Math.round((Math.abs(diff)/maxsteps))*step);
    }
  }
  return ("rgb(" + newcolor[0] + ", " + newcolor[1] + ", " + newcolor[2] + ")");
}

if (ie4||DOM2)
  document.write('<div id="fscroller" style="border:0px solid black;width:'+fwidth+';height:'+fheight+'; text-align:justify;"></div>');

if (window.addEventListener)
window.addEventListener("load", changecontent, false)
else if (window.attachEvent)
window.attachEvent("onload", changecontent)
else if (document.getElementById)
window.onload=changecontent